Add Yahoo as a preferred source to see more of our stories on Google. Bacteria and viruses are often lumped together as germs, and they share many characteristics. They’re invisible to the human eye.

Researchers have discovered the first giant virus in Finland. The specimen demonstrates that such huge viruses are more common in northern regions than previously thought. Viruses are tiny. Even ...

Viruses in man-made environments cause public health concerns, but they are generally less studied than bacteria. A recent study led by environmental scientists from City University of Hong Kong ...

The 1918 influenza pandemic resulted in the loss of over 3% of the world’s population – at least 50 million people. But it wasn’t the flu virus that caused the majority of these deaths. With yet ...